#include<iostream>
#include<string>
#include<sys/types.h>
#include<signal.h>

int main(int argc,char *argv[])
{
    if(argc != 3)
    {
        std::cout<<"./mykill signumber pid"<<std::endl;
        return 1;
    }
    int signum = std::stoi(argv[1]);
    pid_t target = std::stoi(argv[2]);

    int n = kill(target,signum);
    if(n==0)
    {
        std::cout<<"send "<<signum<<" to "<<target<<" success!"<<std::endl;
    }
    return 0;
}